This Greek island, Kefalonia, is a beautiful Ionian island famous for its crystal-clear blue waters, limestone cliffs, and quiet villages. It is not yet crowded, like the island of Santorini or Zakynthos, but remains a relaxed Greek island experience. The prime attraction here is the Melissani Cave, besides the famous beaches of Myrtos, Antisamos, and Fteri. Flights or ferries are available to reach the island, for which a car rental would be the most feasible option to move around the island. It has beautiful towns like Assos, a good swimming spot, amazing viewpoints, besides enough seaside restaurants to taste the flavors of Greek cuisine.